Heyy HMU with those answers hehe

Physics

2 answers:

dimaraw [331]2 years ago

6 0

Answer:

Explanation:

kvv77 [185]2 years ago

3 0

Answer:

A) the need to move quickly through dark environments

Explanation:

Both Dolphins and Bats have to create a system of echolocation because they needed a way to move on dark environmnets where they couldn´t see well enough, and the echolocation helped them to ubicate themselves through waves and reflection of those waves this created a new pair of "eyes" for them.

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The density of mercury is 13.5 g/cm3

adoni [48]

Answer:

DO IY.T

Explanation:

7 0

3 years ago

A rotating fan completes 1200 revolutions every minute. consider the tip of a blade, at a radius of 0.19 m. through what distanc

ser-zykov [4K]

The tip of the fan moves through the outer side of the circle.

So it moves a distance of perimeter of circle in one revolution.

Perimeter of circle = 2 $\pi$ r, where r is the radius of circle.

In this case radius of circular motion = 0.19 meter

So perimeter of circle = 2 $\pi$ *0.19 = 0.38 $\pi$ = 1.194 m

So distance does the tip move in one revolution = 1.194 meter

5 0

3 years ago

A wheel moves in the xy plane in such a way that the location of its center is given by the equations xo = 12t3 and yo = R = 2,

Stella [2.4K]

Answer:

the velocity of the point P located on the horizontal diameter of the wheel at t = 1.4 s is $P = 104.04 \hat{i} -314.432 \hat{j}$

Explanation:

The free-body diagram below shows the interpretation of the question; from the diagram , the wheel that is rolling in a clockwise directio will have two velocities at point P;